Added support for Stamp method

index.js

@@ -141,6 +141,26 @@
 
         fillForm: function( sourceFile, destinationFile, fieldValues, callback) {
             this.fillFormWithFlatten( sourceFile, destinationFile, fieldValues, true, callback);
+        },
+
+        stampForm: function( sourceFile, stampFile, destinationFile, tempFDFPath, callback ) {
+          //Generate the data from the field values.
+          var args = [sourceFile, "stamp", stampFile, "output", destinationFile];
+
+          execFile( "pdftk", args, function (error, stdout, stderr) {
+
+              if ( error ) {
+                  console.log('exec error: ' + error);
+                  return callback(error);
+              }
+
+              // console.log( 'Sucessfully deleted temp file ' + tempFDF );
+              return callback();
+          } );
+        },
+
+        stampPDF: function ( sourceFile, stampFile, destinationFile, callback) {
+          this.stampForm( sourceFile, stampFile, destinationFile, undefined,callback);
         }
 
     };

test/test.js

@@ -14,6 +14,10 @@ var dest2PDF =  "test/test_complete2.pdf",
     dest1PDF =  "test/test_complete1.pdf",
     source1PDF = "test/test1.pdf";
 
+var pirfForm = "test/output.pdf",
+    stampForm = "test/download.pdf",
+    destStamp = "test/stamped.pdf";
+
 
 /**
  * Unit tests
@@ -320,4 +324,20 @@ describe('pdfFiller Tests', function(){
         });
     });
 
+    describe('stampForm()', function(){
+
+
+      it('should create a stamped pdf', function(done) {
+          this.timeout(15000);
+          pdfFiller.stampForm( pirfForm, stampForm, destStamp, undefined, function() {
+            done();
+
+          });
+      });
+
+
+  });
+
+
+
 });